CA2828856A1

CA2828856A1 - Robotic work object cell calibration device, system, and method

Info

Publication number: CA2828856A1
Application number: CA2828856A
Authority: CA
Inventors: Matthew E. Trompeter
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-14
Filing date: 2012-03-14
Publication date: 2012-09-20
Also published as: AU2012229542A1; JP2014508050A; MX2013010355A; US9266241B2; WO2012125209A2; US20120265341A1; US20120283874A1; BR112013023413A2; CN103442858A; US9061421B2; WO2012125209A3; KR20130141664A; EP2686143A2

Abstract

The robotic work object cell calibration system includes a calibration device that emits a pair of beam-projecting lasers acting as a crosshair, intersecting at a tool contact point. The calibration device also emits four plane-projecting lasers, which are used to adjust the yaw, pitch, and roll of the robot tool relative to the tool contact point. Initially, the calibration device is placed in a selected position on a fixture or work piece on the shop floor. The robotic work object cell calibration method increases the accuracy of the off-line programming and decreases robot teaching time. The robotic work object cell calibration system and method are simpler, involve a lower investment cost, entail lower operating costs than the prior art, and can be used for different robot tools on a shop floor without having to perform a recalibration for each robot tool.

Description

ROBOTIC WORK OBJECT CELL CALIBRATION DEVICE, SYSTEM, AND METHOD
'FIELD OF USE
The present invention relates to a calibration device, system, and method for an industrial robot and, more particularly, to a calibration device, system, and method for the industrial robot provided with an imaging device of a visual sensor for detecting a working tool and a working position.
BACKGROUND OF THE INVENTION
The sales of industrial robots that has been driven by the automotive industry, is now 'moving into tasks as diverse as cleaning sewers, detecting bombs, and performing intricate surgery. The number of units sold increased to 120,000 units in 2010, twice the number as the previous year, with automotive, metal, and electronics industries driving the growth.
Prior approaches to calibrating robots use devices that measure either the inaccuracies of the robot after the robot is built or devices which measure work piece positions relative to the robot position prior to off-line programs.
Some prior art systems include;
U.S. Patent Application Disclosure No. 20090157226 (de Smet) discloses a robot-cell calibration system for a robot and its peripheral. The system includes an emitter attached to the robot or its peripheral and emits a laser beam and a receiver also mounted to the robot or its peripheral at a point to permit calibration and for receiving the laser beam and to permit calculations to determine the dimension between the emitter and the receiver.
U.S. Patent No. 6,408,252 (de Smet) discloses a calibration system and displacement measurement device for calibrating a robot system. The system comprises a linear displacement measurement device in conjunction with a robot calibration system. The linear displacement measurement device comprises an elongated member, a drum, a shaft, a drum displacement mechanism and a drum rotation sensor. The drum is displaced axially upon the shaft as the drum rotates when the elongated member is moved. The drum rotation sensor provides accurate information regarding the distance the elongated member travels. The displacement measuring device is used in an iterative manner with the calibration system for the purpose of the calibration of a robotic device.
U.S. Patent No. 6,321,137 (de Smet) discloses a method for calibration of a robot inspection system. The system is used for inspecting a work piece to maintain the accuracy of the robot during inspection of work pieces on a production basis.
The system includes means for storing a mathematical model of the robot, means for measuring the position of a target, and then calibrating the robot based upon input from the mathematical model and the position of the target.
U.S. Patent No. 6,044,308 (Huissoon) discloses a method for calibration of pose of a tool contact point of a robot controlled tool with respect to a tool sensor means in which the robot controlled tool is attached at an end-point of the robot. A
tool contact point sensor is located in a preselected second pose with respect to the reference fixture for sensing position of the tool contact point. The method includes positioning the tool sensor so that the reference fixture is in a field of view of the tool sensor and calculating a pose of the robot end point with respect to the robot frame of reference, calculating a pose of the reference fixture with respect to the tool sensor means from a sensed position of the four topographically defined features of the reference fixture, and calculating a position of the tool contact point with respect to the reference fixture from a sensed position of the tool contact point with respect to the tool contact point sensor means.
These prior art systems generally involve expensive equipment and specialized users and are time-consuming.
The primary object of the robotic work object cell calibration device, system, and method of the present invention is to increase the accuracy of the off-line program and decrease robot teaching time. Still another object of the robotic work object cell calibration device, system, and method of the present invention is to provide a calibration method which is simpler, results in improved precision, result in lower investment and operating costs than the prior art.

What is needed is a robotic work object cell calibration device, system, and method for using different robot tools on a shop floor without having to perform a recalibration for each tool. What is needed is a robotic work object cell calibration device, system, and method that requires no additional computers or software to determine the accuracy of the robot tool or location of peripheral equipment, which uses existing body-in-white procedures, personnel computers and software and ways of communicating information amongst the trades, and requires little or no retraining to deploy.
SUMMARY OF THE INVENTION
The robotic work object cell calibration device, system, and method of the present invention addresses these objectives and these needs.
The calibration device used in the robotic work object cell calibration system and method of the present invention is initially placed in a selected position on a fixture or work piece on the shop floor proximate to the robot.
In the first preferred embodiment of the present invention, the calibration device emits a pair of beam-projecting lasers from an E-shaped extension extending from a central frame. The beam-projecting lasers serve as a crosshair, intersecting at a tool contact point. The calibration device includes a horizontal frame member that includes a pair of opposing frame ends, and a vertical frame member that includes a pair of opposing frame ends. A plane-projecting laser is preferably disposed at each frame end, respectively, and a projected laser plane is emitted from each of the plane-projecting lasers, respectively. The plane-projecting lasers are used to adjust the roll, yaw, and pitch of the robot tool positioned at the tool contact point on the shop floor.
The method for calibrating a robot using the calibration device:
First, attach the emitter to the fixture. Using the calibration control unit of the robot, or a laptop computer with a control interface, the tool contact point is aligned to the horizontal beam-projecting lasers emitted from the calibration device.

Using the horizontal and vertical plane-projecting lasers, align the robot tool for roll, yaw, and pitch. Once this is done, note the coordinates and set this position as the zero position in the robot control unit, or in the control panel on the laptop being used to control the robot. This sets the point which the robot will use for its' work path. After the point has been set, the robot work path is ready to be used.
Now, test the calibration. If the robot does not impact the calibration device in any way and completes the intended operations, the calibration is done. If not, repeat the above until the work path is properly set.
The robotic work object cell calibration system includes a calibration device.
The calibration device emits a pair of beam-projecting lasers from an E-shaped extension extending from a horizontally-disposed central frame. The beam-projecting lasers serve as a crosshair, intersecting at a tool contact point. The calibration device includes a horizontal frame member that includes a pair of opposing frame ends, and a vertical frame member that includes a pair of opposing frame ends. A plane-projecting laser is preferably disposed at each frame end, respectively, and a projected laser plane is emitted from each of the plane-projecting lasers, respectively. The plane-projecting lasers are used to adjust the roll, yaw, and pitch of the robot toot relative to the tool contact point.
A second and third preferred embodiment of the calibration device for use in the robotic work object calibration system and method of the present invention comprises only two plane-projecting lasers attached to either the horizontal frame ends or the vertical frame ends. If only two plane-projecting lasers are used, adjustment is Limited to either roll and yaw, roll and pitch, or yaw and pitch of the robot tool using said pair of plane-projecting lasers of said calibration device.
A fourth preferred embodiment of the calibration device for use in the robotic work object calibration system and method of the present invention, comprises only one plane-projecting laser attached to the middle of the calibration device. The laser head is capable of 360 degrees of rotation, enabling the robot tool to align first on the x-axis, then on the y-axis after the laser head has been rotated.
For a complete understanding of the robotic work object cell calibration device, system, and method of the present invention, reference is made to the following summary of the invention detailed description and accompanying drawings in which the presently preferred embodiments of the invention are shown by way of example.
As the invention may be embodied in many forms without departing from spirit of essential characteristics thereof, it is expressly understood that the drawings are for purposes of illustration and description only, and are not intended as a definition of the limits of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGURE 1 depicts the first preferred embodiment of the calibration device of the robotic work object calibration system and method of the present invention, with two beam-projecting lasers being used for aligning the tool contact point with the calibration device.
FIGURE 2 depicts the first preferred embodiment of the calibration device of the robotic work object calibration system and method of FIGURE 1, with four plane-projecting lasers being emitted from extremities of the calibration device.
FIGURE 3 depicts an exploded view of the first preferred embodiment of the calibration device of the robotic work object calibration system and method of FIGURE 1, further depicting the weld gun with the tool contact point of the weld gun aligned to with the two beam-projecting lasers.
FIGURE 4 depicts the exploded view of the first preferred embodiment of the calibration device of the robotic work object calibration system and method of FIGURE 3, further depicting the addition of two pairs of plane-projecting lasers emitted from the extremities of the calibration device for adjusting the roll, yaw, and pitch of the tool head of the weld gun.
FIGURE 5 depicts an assembly view of the first preferred embodiment of the calibration device of the robotic work object calibration system and method of _ FIGURE 1, further depicting the calibration device being mounted onto a fixture with the robot tool head aligned to the two beam-projecting lasers using the tool contact point.
FIGURE 6 depicts an assembly view of the first preferred embodiment of the calibration device of the robotic work object calibration system and method of FIGURE 5, further depicting the four plane-projecting lasers being used for adjusting the roll, yaw, and pitch of the tool head of the robot.
FIGURE 7 depicts another exploded view of the first preferred embodiment of the calibration device of the robotic work object calibration system and method of FIGURE 1, further depicting the calibration device being mounted to the fixture with the robot tool aligned to the tool contact point alignment lasers and the roll, yaw, and pitch alignment lasers.
FIGURE 8 depicts an assembly view of a second preferred embodiment of the calibration device of the robotic work object calibration system and method of the present invention, two plane-projecting lasers being emitted along the horizontal axis of the calibration device, a pair of beam-projecting lasers intersecting at a tool contact point, the robot tool being aligned to the tool contact point and to this pair of horizontal plane-projecting lasers.
FIGURE 9 depicts an assembly view of a third preferred embodiment of the calibration device of the robotic work object calibration system and method of the present invention, two plane-projecting lasers being emitted along the vertical axis of the calibration device, a pair of beam-projecting lasers intersecting at a tool contact point, the robot tool being aligned to the tool contact point and to this pair of vertical plane-projecting lasers.
FIGURE 10 depicts a fourth preferred embodiment of the calibration device of the robotic work object calibration system and method of the present invention, one plane-projecting laser being emitted along the vertical axis of the calibration device, and a beam-projecting laser intersecting one of the vertical plane-projecting lasers at a tool contact point.

FIGURE 11A depicts a robot and a fixture for use on a shop floor in a prior art embodiment without the calibration device of FIGURE 1, and FIGURES 116 and 11C

depicting a similar robot, fixture with the calibration device used in the present invention, showing how in a simplified manner the calibration device is used to obtain a new zero location and calibrate the path between the fixture and the robot.
DETAILED DECRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to the drawings, FIGURES 1 and 2 disclose the first preferred embodiment of the calibration device [10] of the robotic work object calibration system and method of the present invention. The calibration device [10] is used to calibrate the work path of a robot tool based on a tool contact point (point in space) [60]. The known point in space [60] is defined in three dimensions (X, Y, and Z) and relative to their rotational axes Rx (pitch), Ry (yaw), and Rz (roll).
The calibration device [10] includes a horizontal frame member [22] that includes a pair of opposing frame ends [32A and 32B], and a vertical frame member [24]
that includes a pair of opposing frame ends [32C and 32D]. A plane-projecting laser [41, 42, 43, and 44] is preferably disposed at each frame end [32A, 32B, 32C, and 32D], respectively, and a projected laser plane [51, 52, 53, and 54] is emitted from each of the plane-projecting lasers [41, 42, 43, and 44], respectively.
Extending along the horizontal frame member [22] are three arms parallel which combine to form a squared "E-shaped" structure [25] which is horizontally aligned and generally centrally disposed relative to horizontal frame member [22] and vertical frame member [24]. The center arm (not numbered) of the E-shaped structure [25] is shorter than the two end arms [26A and 266].
A first beam-projecting laser [58] is emitted from the shortened center arm of the "E-shaped" structure [25] disposed at the proximate center of the calibration device [10]. A second beam-projecting laser [56] is emitted from one of the arms [26A] of an E-shaped structure [25] and is directed into the opposing arm [26B].

The first beam-projecting laser [58] intersects and is essentially perpendicular and coplanar with the second beam-projecting laser [56] at a known point in space [60], defined in three dimensions in terms of X, Y, and Z coordinates.
Since in the preferred embodiment depicted in FIGURE 2, the "E-shaped"
structure [25] is positioned at the center of horizontal frame member [22] and vertical frame member [24], laser beam [58] is essentially coplanar with the two projected laser planes [51 and 52] emitted from the plane-projecting lasers [41 and 42]
emitted from frame ends [32A and 32B]. Similarly, beam-projecting laser [58] is essentially coplanar with the two projected laser. planes [53 and 54] emitted from the plane-projecting lasers [43 and 44] emitted from frame ends [32C and 32D]. The calibration device [10] is mountable onto a fixture [90] and enables a robot work path to be calibrated relative to the known point in space [60].
The plane-projecting lasers [41, 42, 43, and 44] project the four projected laser planes [51, 52, 53, and 54, respectively] from the frame ends [32A, 32B, 32C, and 32D, respectively] of the calibration device [10]. The plane-projecting lasers [41, 42, 43, and 44] are red laser modules, having focused lines (3.5v-4.5v 16mm 5mw).
The beam-projecting lasers [56 and 58] are focusable points that project the two laser beams emitted from the arm [26A] of the calibration device [10]. The beam-projecting lasers [56 and 58] are red laser modules, having focusable dots (3.5v-4.5v 16mm 5mw).
FIGURE 3 depicts an exploded view of the calibration device [10] for use with a weld gun. The tool contact point [60] of the weld gun is aligned with the two beam-projecting alignment lasers [56 and 58]. FIGURE 4 further depicts the addition of the four projected laser planes [51, 52, 53, and 54, respectively] from the plane-projecting lasers [41, 42, 43, and 44, respectively] for adjusting the roll, yaw, and pitch of the robot tool head [80].
FIGURE 5 depicts the calibration device [10] being mounted onto the fixture [90].
The robot toot head [80] is aligned to the two beam-projecting lasers [56 and 58]
using the tool contact point [60]. FIGURE 6 further depicts the four projected laser planes [51, 52, 53, and 54, respectively] from the plane-projecting lasers [41, 42, 43, and 44, respectively] of work piece [10], which are used to adjust the roll, yaw, and pitch of the robot tool head [80].
FIGURE 7 depicts the calibration device [10] mounted onto the fixture [90]
with the robot tool [80] aligned with the tool contact point [60] alignment laser beams [56 and 58] setting the X, Y, and Z coordinates.
FIGURE 8 depicts a second preferred embodiment of a calibration device [110]
for use in the robotic work object calibration method of the present invention. In this embodiment, two projected laser planes [51 and 52] are emitted from two plane-projecting lasers [41 and 42, respectively] along the horizontal axis of the frame member [32] of the calibration device [110]. The robot tool [80] is aligned with the tool contact point [60] and with this pair of projected laser planes [51 and 52].
FIGURE 9 depicts a third preferred embodiment of the calibration device [210]
for use in the robotic work object calibration method of the present invention. In this embodiment, two projected laser planes [53 and 54] are emitted from two plane-projecting lasers [43 and 44] are emitted along the vertical axis of the frame member [24] of the calibration device [210]. The robot tool [80] is aligned with the tool contact point [60] and with this pair of projected laser planes [53 and 54].
FIGURE 10 depicts yet another preferred embodiment of the calibration device [310]
for use in the robotic work object calibration method of the present invention. In this embodiment, one plane projected laser [51] is emitted from plane-projecting laser [43] along the vertical axis of the calibration device [310]. A beam-projecting laser [56] intersects with the vertical plane-projecting laser [53] at a tool contact point [60]. The plane-projecting laser [51] has a rotating head capable of rotating 360 , enabling the robot tool to align first on the x-axis, then on the y-axis after the laser head has been rotated.
FIGURE 11A depicts a robot [81] and a fixture [90] for use on a shop floor in a prior art embodiment without the calibration device of the present invention. FIGURES

and 11C depict a similar robot [81], and fixture [90] with the calibration device [10], depicting how in a simplified manner the calibration device [10] is used to obtain a new zero location and calibrate the path between the fixture [90] and the robot [81].
Using CAD simulation software, the CAD user selects a position on the tool to place that is best suited to avoid crashes with other tooling and for ease of access for the robot [81] or end-of-arm tooling. The offline programs are then downloaded relative to the calibration device [10]. The calibration device [10] is then placed onto the tool or work piece in the position that is defined by the CAD user on the shop floor.
The robot technician then manipulates the tool contact point [60] of the robot toot [80] into the device and aligns it to the beam-projecting lasers [56 and 58]
to obtain the difference between the CAD world and shop floor. This difference is then entered into the robot [81] and used to define the new calibration device [10]. This calibrates the offline programs and defines the distance and orientation of the tool, fixture, and peripheral.
The offline programming with the calibration device [10] on the fixture [90]
enable the calibration device [10] to be touched up to the "real world position" of the fixture [90] relative to the robot [81]. If the fixture [90] ever needs to be moved or is accidently bumped, simply touch up the calibration device [10] and the entire path shifts to accommodate.
The robotic work cell calibrations method of the present invention is compatible with robotic simulation packages, including but not limited to, ROBCAD, Process Simulate, DELMIA, Roboguide and RobotStudio CAD software.
The beam-projecting lasers [56 and 58] and the projected laser planes [51, 52, 53, and 54] are projected onto known features of the robot tool [80], and then used to calibrate the path of the robot tool [80] and measure the relationship of the fixture [90] relative to the robot tool [80].
The CAD user initially selects a position best suited on a tool or work piece to avoid crashes with other tooling and for ease of access for the robot or end-of-arm tooling.
The calibration device [10] preferably mounts onto a fixture [90] using a standard NAMM's hole pattern mount [40]. The mounts are laser cut to ensure the exact matching of Kole sizes for the mounting of parts.
The calibration device [10] of the present invention has a zero point, a zero reference frame, and a zero theoretical frame in space, which is positioned on the fixture [90].
The calibration device [10] is placed onto the fixture [90], visually enabling the tool contact point of the weld gun to be orientated into the calibration device [10]
obtaining the "real-world" relationship of the robot tool [80] to the fixture [90] while updating the calibration device [10] to this "real-world" position.
The robotic work object cell calibration system of the present invention requires that the position of the calibration device [10] correlate with the position of the robot tool [80] to calibrate the path of the robot tool [80] while acquiring the "real-world"
distance and orientation of the fixture [90] relative to the robot toot [80].
The robotic work object cell calibration method positions the robot tool [80]
with the calibration device [10] and determines the difference.
The robotic work object cell calibration method of the present invention is used to calibrate a "known" calibration device or frame (robotic simulation CAD
software provided calibration device). The robotic work object cell calibration method of the present invention works by projecting laser beams to a known X, Y, and Z
position and defining known geometric planes used to adjust the roll, yaw, and pitch of the robot tool [80] relative to the tool contact point [60].
The laser is projected onto the robotic end of the robot arm tooling (weld guns, material handlers, mig torches, etc) where the user will manipulate the robot with end-of-arm tooling into these lasers to obtain the positional difference between the "known" off-line program (simulation provided calibration device) and the actual (shop floor) calibration device. The reverse is also true - for instance; a material handler robot can carry the calibration device [10] to a know work piece with known features.
The CAD model of the calibration device [10] is placed in the robotic simulation CAD
world. The CAD user selects a position best suited on a tool or work piece to avoid crashes with other tooling and for ease of access for the robot or end-of-arm tooling.

The off-line programs are then downloaded relative to this calibration device [10].
The calibration device [10] will be placed onto the tool or work piece in the position that was defined by the CAD user on the shop floor. The robot technician then manipulates the tool contact point [60] into the device, aligning it to the laser beams to obtain the difference between the CAD world and shop floor. This difference is then entered into the robot and used to define the new calibration device, thus calibrating the off-line programs and defining the distance and orientation of the tool, fixture, peripheral, and other key components.
The robotic work object cell calibration method of the present invention calibrates the paths to the robot [81] while involving the calibration of the peripherals of the robot.
The laser plane generating system deployed in the robotic work object cell calibration system and method of the present invention is well known in the art - see for example U.S. Patent 5,689,330 (Gerard, et al.), entitled "Laser Plane Generator Having Self-Calibrating Levelling System"; and U.S. Patent 6,314,650 (Falb), entitled "Laser System for Generating a Reference Plane".
The robotic work object cell calibration system and method of the present invention aids in the kiting or reverse engineering of robotic systems for future use in conjunction with robotic simulation software allowing integrators the ability to update their simulation CAD files to the "real world" positions.
The technology uses existing body-in-white procedures, personnel computers and software and ways of communicating information amongst the trades.
Throughout this application, various Patents and Applications are referenced by number and inventor. The disclosures of these documents are hereby incorporated by reference into this specification in their entireties in order to more fully describe the state of the art to which this invention pertains.
It is evident that many alternatives, modifications, and variations of the robotic work object cell calibration device, system, and method of the present invention will be apparent to those skilled in the art in light of the disclosure herein. It is intended that the metes and bounds of the present invention be determined by the appended claims rather than by the language of the above specification, and that all such alternatives, modifications, and variations which form a conjointly cooperative equivalent are intended to be included within the spirit and scope of these claims.

PARTS LIST
10. calibration device (1st preferred embodiment) 22. horizontal frame member 24. vertical frame member 25 E-shaped structure 26A and 268. arms 32A. left frame end (horizontal) 328. right frame end (horizontal) 32C. upper frame end (vertical) 32D. lower frame end (vertical) 40. NAMM's mounting 41. plane-emitting laser from left-side of horizontal frame 42. plane-emitting laser from right-side of horizontal frame 43. plane-emitting laser from upper vertical frame 44. plane-emitting laser from lower vertical frame 51. projected laser plane from plane-emitting laser (41) 52. projected laser plane from plane-emitting laser (42) 53. projected laser plane from plane-emitting laser (43) 54. projected laser plane from plane-emitting laser (44) 56. laser beam from arm (26A) 58. laser beam from center of "E"
60. tool contact point 80. robot tool 81. robot 82. robot joint 85A. Et 858. robot linkages 87. robot base 90. fixture 110. rd calibration device 210. 3rd calibration device 310. 4th calibration device

Claims

1. A device to calibrate a work path of a robot tool, said calibration device having a frame, said frame, in use, emitting first and second beam-projecting lasers, said first beam-projecting laser intersecting said second beam-projecting laser at a known point in space, said frame, in use, emitting at least two plane-projecting lasers;
whereby said frame is mountable onto a fixture and enables said robot work path to be calibrated relative to said known point in space; and whereby said at least two plane-projecting lasers enable adjustment of angular positions of said robot tool relative to said known point in space.

2. The calibration device of Claim 1, wherein said frame includes four plane-projecting lasers, each of said plane-projecting lasers emitting a projected plane laser, said plane-projecting lasers enabling said adjustment of the yaw, pitch, and roll of said robot tool.

3. A device to calibrate a work path of a robot tool, said calibration device having a frame, said frame, in use, emitting first and second beam-projecting lasers, said first beam-projecting laser intersecting said second beam-projecting laser at a known point in space, said frame, in use, emitting at least four plane-projecting lasers;
whereby said frame is mountable onto a fixture and enables said robot work path to be calibrated relative to said known point in space; and whereby said at least four plane-projecting lasers enable adjustment of yaw, pitch, and roll of said robot tool relative to said known point in space.

4. A device having a frame, said frame, in use, emitting at least a plane-projecting laser, said frame including an arm extending therefrom, a first beam-projecting laser being emitted from said arm, said first beam-projecting laser intersecting said plane-projecting laser at a known point in space, said another laser being emitted from said frame;
whereby said calibration device is mountable onto a fixture and enables a robot work path to be calibrated relative to said known point in space.

5. A system for calibrating a robot work path, said system comprising:
a calibration device being mountable onto a fixture, said calibration device having a frame, said frame, in use, emitting first and second beam-projecting lasers, said first beam-projecting laser intersecting said second beam-projecting laser at a known point in space, said frame, in use, emitting at least two plane-projecting lasers, said calibration device enabling said robot work path to be calibrated relative to said known point in space; and a robot tool that is alignable with said device at said known point in space, a robot work path being calibrated for said robot tool when said calibration device is mountable onto a fixture, said at least two plane-projecting lasers enabling adjustment of angular positions of said robot tool relative to said known point in space relative to at least two planes, said two planes being selected from roll, yaw, and pitch.

6. A system for calibrating a robot work path, said system comprising:
a calibration device being mountable onto a fixture, said calibration device having a frame, said frame, in use, emitting first and second beam-projecting lasers, said first beam-projecting laser intersecting said second beam-projecting laser at a known point in space, said frame, in use, emitting at least four plane-projecting lasers, said calibration device enabling said robot work path to be calibrated relative to said known point in space; and a robot tool that is alignable with said device at said known point in space, a robot work path being calibrated for said robot tool when said calibration device is mountable onto a fixture, said at least four plane-projecting lasers enabling adjustment of yaw, pitch, and roll of said robot tool relative to said known point in space.

7. A system for calibrating a robot work path, said system comprising:
a calibration device being mountable onto a fixture, said calibration device having a frame, said frame, in use, emitting at least a first plane-projecting laser, said frame including an arm extending therefrom, a beam-projecting laser being emitted from said arm, said beam-projecting laser intersecting said plane-projecting laser at a known point in space;
a robot tool that is alignable with said device at said known point in space, a robot work path being calibrated for said robot tool when said device is mountable onto a fixture.

8. A method for calibrating a robot on a shop floor deploying a calibration device, said robot having peripherals including a fixture and a robot tool, said calibration device emitting four plane-projecting lasers and two beam-projecting lasers, said beam-projecting lasers intersecting at a tool contact point, said calibration method comprising:
a. placing said calibration device relative to a selected position on said fixture or work object, said fixture or work object being positioned on a shop floor;
b. locating said tool contact point for said beam and plane-projecting lasers on said shop floor;
c. manipulating said robot tool into alignment with said tool contact point relative to said beam and plane-projecting lasers on said shop floor; and d. adjusting either roll and yaw, roll and pitch, yaw and pitch, or roll yaw and pitch of said robot tool using said plurality of plane-projecting lasers.

9. A method for calibrating a robot on a shop floor deploying a calibration device, said robot having peripherals including a fixture and a robot tool, said device emitting at least two beam-projecting lasers and a plurality of plane-projecting lasers, said device lasers intersecting at a tool contact point, said calibration method comprising:
a. placing said calibration device relative to a selected position on said fixture or work object, said fixture or work object being positioned on a shop floor;
b. locating said tool contact point relative to said device on said shop floor;
c. manipulating said robot tool into alignment with said tool contact point for said beam and plane-projecting lasers on said shop floor; and d. adjusting either roll and yaw, roll and pitch, or yaw and pitch of said robot tool using said plurality of plane-projecting lasers.

10. A method for calibrating a robot on a shop floor deploying a calibration device, said robot having peripherals including a fixture and a robot tool, said device emitting at least one beam-projecting laser and at least one plane-projecting laser, said lasers intersecting at a tool contact point, said calibration method comprising:
a. placing said calibration device relative to a selected position selected position on said fixture or work object, said fixture or work object being positioned on a shop floor;
b. locating said tool contact point relative to said calibration device on said shop floor;
c. manipulating said robot tool into alignment with said tool contact point for said lasers on said shop floor; and d. adjusting either roll and yaw, roll and pitch, or yaw and pitch of said robot tool using said plurality of plane-projecting lasers.

11. The calibration method of Claim 10, wherein said manipulation of said robot tool into alignment with said tool contact point is uses either a calibration control unit of the robot or a laptop computer with a control interface.

12. A device to calibrate a work path of a robot tool, said calibration device having a frame, said frame, in use, emitting first laser and a second laser, said first laser intersecting said second laser at a known point in space;
whereby said frame is mountable onto a fixture and enables said robot work path to be calibrated relative to said known point in space; and whereby said at least first and second lasers enable adjustment of angular positions of said robot tool relative to said known point in space.

13. A system for calibrating a robot work path, said system comprising:
a calibration device being mountable onto a fixture, said calibration device having a frame, said frame, in use, emitting at least a first laser and a second laser, said first laser intersecting said second laser at a known point in space;
and a robot tool that is alignable with said device at said known point in space, a robot work path being calibrated for said robot tool when said device is mountable onto a fixture.

14. A method for calibrating a robot on a shop floor deploying a calibration device, said robot having peripherals including a fixture and a robot tool, said device, in use, emitting first laser and a second laser, said first laser intersecting said second laser at a known point in space, said calibration method comprising:
a. placing said calibration device relative to a selected position on said fixture or said work object, said fixture or said work object being positioned on a shop floor;
b. locating said known point in space relative to said calibration device on said shop floor;
c. manipulating said robot tool into alignment with said known point in space for said lasers on said shop floor; and d. adjusting either roll and yaw, roll and pitch, or yaw and pitch of said robot tool using known point in space.